Farm Equipment - N62 rod bolts lock washers

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N62 rod bolts lock washers

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Category: Allis Chalmers
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=44788
Printed Date: 12 Sep 2025 at 12:15pm
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Topic: N62 rod bolts lock washers

Posted By: Tracy Martin TN
Subject: N62 rod bolts lock washers
Date Posted: 31 Jan 2012 at 7:32pm

Where can you buy the lock washers for the N62 Continental rod bolts?And the pal nuts for main bolts? Thanks Tracy Martin

Replies:

Posted By: Gerald J.
Date Posted: 31 Jan 2012 at 8:47pm

I know McMaster-Carr has Pal nuts. And many variations on lock washer. www.mcmaster.com

Gerald J.

Posted By: Tracy Martin TN
Date Posted: 31 Jan 2012 at 8:50pm

Gerald, I have not found a grade 8 with internal star locking. They are 5/16 diameter. Thanks Tracy Martin

Posted By: Chalmersbob
Date Posted: 31 Jan 2012 at 10:04pm

I needed 1 and got it at the local hardware store. My mains didn't have nuts, it has bolts. Book states that they came both ways, changed by serial #. My local hardware store also has the palnuts. That stuff is in the pull-out tray boxes. Bob

Posted By: Gerald J.
Date Posted: 01 Feb 2012 at 1:10am

I see them not rated by grade, only by hardness and there is a heavy duty version
http://www.mcmaster.com/#91150A113 I don't know what the ASME standard that's referenced says about strength or plating. It would take a tough washer to cut into a grade 8 nut or bolt.

Gerald J.

Posted By: Gerald J.
Date Posted: 01 Feb 2012 at 1:19am

McMaster says their grade 8 bolts also meet ASME B18.2.1 like those heavy duty internal star lockwashers. But so do grade 5 and grade 2 bolts. Grade 8 bolts are said to Rockwell C33 hardness, while those heavy duty lock washers are C44 hardness.

Gerald J.

Posted By: orangeman
Date Posted: 01 Feb 2012 at 4:14am

Check Gerard Moones Montes Equipment Chicago Illinois. Sells parts for Connie engines.